Results 11 to 20 of about 9,339,847 (323)

Concept image and concept definition in mathematics with particular reference to limits and continuity [PDF]

open access: yes, 1981
The concept image consists of all the cognitive structure in the individual's mind that is associated with a given concept. This may not be globally coherent and may have aspects which are quite different from the formal concept definition.
D. O. Tall   +3 more
core   +2 more sources

Chaos-Based Image Encryption: Review, Application, and Challenges

open access: yesMathematics, 2023
Chaos has been one of the most effective cryptographic sources since it was first used in image-encryption algorithms. This paper closely examines the development process of chaos-based image-encryption algorithms from various angles, including symmetric
Bowen Zhang, Lingfeng Liu
semanticscholar   +1 more source

Image Encryption Scheme Based on Newly Designed Chaotic Map and Parallel DNA Coding

open access: yesMathematics, 2023
In this paper, a new one-dimensional fractional chaotic map is proposed and an image encryption scheme based on parallel DNA coding is designed by using the chaotic map.
Shenli Zhu   +3 more
semanticscholar   +1 more source

Mathematical Methods in Biomedical Imaging [PDF]

open access: yesComputational and Mathematical Methods in Medicine, 2013
Biomedical imaging is a rapidly growing field to provide a state-of-the-art tool for preclinical biomedical research and clinical applications, in view of its ability to noninvasively reveal subtle structural variations of biological tissues and visualize in vivo physiological and pathological processes at the cellular and molecular levels ...
Wenxiang Cong   +2 more
openaire   +2 more sources

Impulsive Noise Removal with an Adaptive Weighted Arithmetic Mean Operator for Any Noise Density

open access: yesApplied Sciences, 2021
Many computer vision algorithms which are not robust to noise incorporate a noise removal stage in their workflow to avoid distortions in the final result. In the last decade, many filters for salt-and-pepper noise removal have been proposed.
Manuel González-Hidalgo   +3 more
doaj   +1 more source

IMAGE SHARPENING WITH BLUR MAP ESTIMATION USING CONVOLUTIONAL NEURAL NETWORK [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
We propose a method for choosing optimal values of the parameters of image sharpening algorithm for out-of-focus blur based on grid warping approach. The idea of the considered sharpening algorithm is to move pixels from the edge neighborhood towards the
A. Nasonov, A. Krylov, D. Lyukov
doaj   +1 more source

Modern Mathematics in Biomedical Imaging [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2011
Over the past decades, modern mathematics is playing an increasingly important role in the development of biomedical imaging, yielding groundbreaking ideas and powerful tools for clinical and preclinical applications. Nevertheless, there are not only growing obstacles between applied mathematicians and imaging engineers to communicate more effectively ...
Yangbo Ye   +3 more
openaire   +3 more sources

Study of Two Families of Generalized Yager’s Implications for Describing the Structure of Generalized (h,e)-Implications

open access: yesMathematics, 2021
In this study, we analyze the family of generalized (h,e)-implications. We determine when this family fulfills some of the main additional properties of fuzzy implication functions and we obtain a representation theorem that describes the structure of a ...
Raquel Fernandez-Peralta   +2 more
doaj   +1 more source

The set of all the possible compromises of a multi-level multi-objective linear programming problem

open access: yesCroatian Operational Research Review, 2022
In this paper, a new approach is developed to solve multi-level multi-objective linear programming problems (ML-MOLPP), by providing the set of all the compromises without taking into account the hierarchy of the problem.
Mustapha Kaci, Sonia Radjef
doaj   +1 more source

On surface completion and image inpainting by biharmonic functions: Numerical aspects [PDF]

open access: yes, 2018
Numerical experiments with smooth surface extension and image inpainting using harmonic and biharmonic functions are carried out. The boundary data used for constructing biharmonic functions are the values of the Laplacian and normal derivatives of the ...
Damelin, S. B., Hoang, N. S.
core   +3 more sources

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